Worked on enhancing the reliability of the metadata dump workflow in the juicedata/juicefs repository, focusing on backend stability and resource management. Addressed a goroutine leak by ensuring progress bars were properly closed using Go’s defer statement, which prevented resource leaks during dump operations. Developed a regression test suite to verify that failed metadata dumps in both SQL and KV paths no longer resulted in lingering goroutines, thereby improving system stability and reducing memory growth risks. Applied Go concurrency best practices and test-driven development, with an emphasis on robust testing and code review readiness to maintain performance and prevent future regressions.